Simplify
-3(2.5-k)+0.5(7+8k)

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2

Peter measures the angles in a triangle. he finds that the angles are 95, 10 and 75. is he correct? explain your answer